#!/bin/sh

################################################################################
##                                                                            ##
## Copyright (c) International Business Machines  Corp., 2005                 ##
##                                                                            ##
## This program is free software;  you can redistribute it and#or modify      ##
## it under the terms of the GNU General Public License as published by       ##
## the Free Software Foundation; either version 2 of the License, or          ##
## (at your option) any later version.                                        ##
##                                                                            ##
## This program is distributed in the hope that it will be useful, but        ##
## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
## or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License   ##
## for more details.                                                          ##
##                                                                            ##
## You should have received a copy of the GNU General Public License          ##
## along with this program;  if not, write to the Free Software               ##
## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA    ##
##                                                                            ##
##                                                                            ##
################################################################################
#
# File:
#   create_file
#
# Description:
#   Create a file in the specified size
#
# Arguments:
#   $1: filename
#   $2: filesize
#
# Returns:
#   0: Success
#   1: Fail
#
# Author:
#   Mitsuru Chinen <mitch@jp.ibm.com>
#
# History:
#   Oct 19 2005 - Created (Mitsuru Chinen)
#
#-----------------------------------------------------------------------
#Uncomment line below for debug output.
#trace_logic=${trace_logic:-"set -x"}
$trace_logic

# Check argument
if [ $# -ne 2 ] ; then
    echo "Usage: create_file filename filesize" >&2
    exit 1
fi
filename=$1
filesize=$2

if [ $filesize -le 0 ]; then
    echo "The filesize should be bigger than 0" >&2
    exit 1
fi

echo -n "A" > $filename 2>/dev/null
echo -n "Z" | dd of=$filename bs=1 seek=`expr $filesize - 1` >/dev/null 2>&1
if [ $? -ne 0 ]; then
    echo "Failed to create $filename" >&2
    exit 1
fi
chmod 644 $filename

exit 0
